Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Multi-Way Conventional loudspeakers with crossovers

Refurbishing  JBL 4310 and 4412
Refurbishing  JBL 4310 and 4412
Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 2nd January 2018, 03:44 PM   #11
Blaukomma is offline Blaukomma  Germany
diyAudio Member
 
Join Date: Feb 2014
Location: germany
Surrounds arrived today and i tried to get rid of the black paint and it seems it works fine. Hell lot of work but i think the 4412 will look perfect in a while.
I will post some photos this week.
  Reply With Quote
Old 3rd January 2018, 05:32 PM   #12
wesayso is offline wesayso  Netherlands
diyAudio Member
 
wesayso's Avatar
 
Join Date: Jul 2007
Can't wait to see the transformation .
__________________
Use Science to design your speakers and they will sound like a piece of Art...
  Reply With Quote
Old 4th January 2018, 05:35 PM   #13
Blaukomma is offline Blaukomma  Germany
diyAudio Member
 
Join Date: Feb 2014
Location: germany
Hi guys! I refoamed the 128H-1 and both are working fine again. Had a little bit of trouble with the glue syringe.. the needle popped of and the glue.. everywhere.. but at least not on the cone (as you can see).

I kept on sanding down the first 4412 and this is how it looks like:

As you can see the overall veneer is still very stained and not really smooth. The pores are filled with black paint and i`m not sure how to move on now. If i keep on sanding it will look like the corner (without black paint pores) but i`m afraid to sand through the veneer destroying it..

Don`t know if i can live with this stained appearance if i could maybe had the chance to remove it..

What do you think?

"leave it stained and with black pores!"

or

"sand it down until you get a clean and smooth paint free walnut venneer!" - with the risk of destroying it...

Best wishes from germany!
Kai
Attached Images
File Type: jpg 2018-01-04 19.00.51.jpg (503.3 KB, 112 views)
File Type: jpg 2018-01-04 19.00.58.jpg (445.2 KB, 112 views)
File Type: jpg 2018-01-04 19.01.07.jpg (433.9 KB, 109 views)
File Type: jpg 2018-01-04 15.55.18.jpg (708.1 KB, 107 views)
  Reply With Quote
Old 27th January 2018, 10:38 AM   #14
wesayso is offline wesayso  Netherlands
diyAudio Member
 
wesayso's Avatar
 
Join Date: Jul 2007
What did you end up doing? Any new pictures?
__________________
Use Science to design your speakers and they will sound like a piece of Art...
  Reply With Quote
Old 27th January 2018, 03:23 PM   #15
Top Shelf is offline Top Shelf  Canada
diyAudio Member
 
Top Shelf's Avatar
 
Join Date: Apr 2010
Location: Ontario
Try using a green 3M scrubby pad with paint thinner and a light touch to see if it will remove the paint spots in the pores, rubbing with the wood grain. Try a test section on the bottom of the cabinet first to see if the thinner will discolour the veneer or make it lift (by thinning the veneer glue).
I would NOT use steel wool for this as the fine steel wool particles may become airbourne and go through the port into the voicecoil.
__________________
NO REST FOR THE WOOFER! 🔊😈
  Reply With Quote
Old 28th January 2018, 02:22 AM   #16
dotneck335 is offline dotneck335  United States
diyAudio Member
 
Join Date: Dec 2012
I can't help but wondering how much better the JBL 4310s would sound if tri-amped......??? Anybody ever try it?
  Reply With Quote
Old 3rd February 2018, 02:59 PM   #17
phase is offline phase  United States
diyAudio Member
 
Join Date: Oct 2004
I would be tempted to try some of the toxic paint stripper and see how it works to remove the paint residue. Maybe on the underside of the cabinet?
  Reply With Quote
Old 3rd February 2018, 03:30 PM   #18
phivates is offline phivates  United States
diyAudio Member
 
Join Date: Jan 2011
Location: Willamette Valley
I suggest the "green" stripper rather than the old methylene chloride stuff, which dries too fast. Also the auto paint store has gray abrasive pads which are less aggressive than the green or red. Third, just stop and call it good when it isn't working and find a stain which will mask the leftovers. Sometimes the gel version works when some concealing needs to happen. Too bad Watco doesn't work for everything.
Not a fan of Minwax products. Varathane used to be better but both are on the same display at Lowe's these days so who knows?

Last edited by phivates; 3rd February 2018 at 03:32 PM.
  Reply With Quote
Old Yesterday, 08:19 PM   #19
sb001 is offline sb001
diyAudio Member
 
Join Date: May 2018
Quote:
Originally Posted by Blaukomma View Post
Hi guys,



So what kind of finish do i really have here?! Was there an ex factory Black Version of the JBL 4310?

Hello all, my first post here on diyaudio! I just joined the site due to the fact that I too was looking for an answer to this question- I recently purchased a pair of 4310's which I found on facebook marketplace for $30!! They have a beautiful (IMO) gloss black finish. The finish appears to be factory to me, it is WAAY too nice to be a home job and there is no sign of overlayment or anything that would hint that it was done aftermarket (but I'm no expert.) I have included a few pictures here to show you. Hope someone can answer this for the OP as well as myself, since all the pictures I can find of these online appear to be either the woodgrain or gray finish. Thx!
Attached Images
File Type: jpg 20180520_142717.jpg (540.9 KB, 14 views)
File Type: jpg 20180520_134517.jpg (572.4 KB, 12 views)
File Type: jpg 20180520_142739.jpg (490.0 KB, 11 views)
File Type: jpg 20180520_142756.jpg (511.9 KB, 8 views)
File Type: jpg 20180520_145214.jpg (496.8 KB, 7 views)
  Reply With Quote

Reply


Refurbishing  JBL 4310 and 4412Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
JBL 4412 cab modification. Possible? honkyjonk Multi-Way 15 10th February 2017 08:37 PM
JBL 4310 KenHoard Swap Meet 0 20th November 2015 01:07 AM
mounting jbl 4412 speakers from ceiling lexx21 Multi-Way 1 1st August 2015 09:11 AM
JBL 4310 fiberglass behind mid-driver paulnparis Multi-Way 23 17th September 2011 05:07 PM
jbl 4310 - bad bass paulnparis Multi-Way 13 8th April 2009 10:18 PM


New To Site? Need Help?

All times are GMT. The time now is 07:12 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 14.29%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio
Wiki